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Filtering by: Advisor Kronstad, Warren E. Remove constraint Advisor: Kronstad, Warren E. Degree Field Crop Science Remove constraint Degree Field: Crop Science

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Effect of row spacings, seeding rates and nitrogen fertilizer rates on the agronomic performance of Yamhill and Hysolop wheat (Triticum aestivum L.)

Creator:

Chemli, Mohamed

Abstract:

The response of two newly released cultivars of winter wheat when grown under different row spacings, seeding rates and nitrogen levels were investigated. Measurements made included grain yield, tiller number per unit area, plant height, 300 kernel weight, bushel weight and protein content of the grain. Hyslop and Yamhill cultivars...

Resource Type:

Masters Thesis
Estimates of heterosis for five agronomic traits in selected winter x spring and winter x winter wheat crosses (Triticum aestivum L. em Thell)

Creator:

Brajcich, P.

Abstract:

Concern regarding the lack of genetic variability and the apparent yield plateau reached in wheat breeding have prompted this investigation. The systematic crossing of spring and winter wheat types which have evolved to form somewhat different gene pools, may provide a source of additional usable genetic variability for future yield...

Resource Type:

Masters Thesis
Identification, inheritance and association of different dwarfing sources and gibberellic acid insensitivity in barley (Hordeum vulgare L.)

Creator:

Sears, Rollin George

Resource Type:

Dissertation
Influence of phosphorous and lime application on root growth and grain yield of two winter wheat cultivars (Triticum Aestivum, L em thell)

Creator:

Boulger, Mary Caroline

Abstract:

Differential grain yield response of two winter wheat cultivars ('Yamhill' and'McDermid) when grown on acid soils prompted this investigation. Root samples were taken at two soil depths at late tillering and anthesis from plots established on an acid nonpareil soil in Douglas County, Oregon. The soil pH was 5.2-5.3 and...

Resource Type:

Masters Thesis
Heritability estimates and associations of different height levels with aluminum toxicity and grain yield in wheat

Creator:

Camargo, Carlos Eduardo de Oliveira

Resource Type:

Dissertation
A study of methods of parental evaluation using testers to predict subsequent progeny performance in winter wheat (Triticum aestivum L.)

Creator:

Alexander, William Larry

Abstract:

The major objective of this study was to determine why certain winter wheat cultivars, when hybridized, will produce a greater proportion of desirable plants in subsequent, segregating generations. Three winter wheat parents were chosen as the experimental material, based on their known performance as parents. Yamhill and Pullman Selection 101...

Resource Type:

Dissertation
Influence of different nitrogen and moisture levels on the expression of grain yield and protein content in selected wheat (Triticum aestivum, L. em Thell) and barley (Hordeum vulagre, L. em Lam.) cultivars

Creator:

Gomez-Pando, Luz

Abstract:

This investigation was conducted to provide information regarding 1) the relationship between the nitrogen percentage in the vegetative tissue of wheat and barley at various growth stages with grain protein and 2) to evaluate the possible association between grain yield and grain protein as influenced by different cultivars, nitrogen levels...

Resource Type:

Masters Thesis
Competitive effect for grain yield of four cultivars in pure and mixed populations in wheat (Triticum aestivum Vill;, Host)

Creator:

Valencia-Villarreal, Jose Antonio

Abstract:

Concerns regarding maintaining wheat yield per hectare and extending the commercial life expectancy of cultivars grown in the Yaqui Valley of Mexico prompted this investigation. Four genetically diverse spring wheat cultivars were grown in pure stands and in all possible combinations at the Northwest Agricultural Research Center at Ciudad Obregon...

Resource Type:

Dissertation
Progeny tests for predicting grain yield and selected agronomic traits in single, three-way, and double crosses in wheat (Triticum aestivum L. em Thell.)

Creator:

Petpisit, Vichien

Resource Type:

Dissertation
Evaluation of four quality factors in a selected winter x spring wheat cross (Triticum aestivum Vill., Host)

Creator:

Schumaker, Karen Sue

Abstract:

The nature of the genetic variation associated with a cross involving winter and spring wheat parents for four quality factors was evaluated. Yamhill, a soft white winter wheat, and Inia 66, a hard red spring wheat, were selected as parents for this study. They represented distinctly different phenotypes for the...

Resource Type:

Masters Thesis

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Academic Affiliation

Crop Science44
Crop and Soil Science12
Agronomic Crop Science1

Advisor

Kronstad, Warren E.[remove]57
Rajaram, Sanjaya1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1973 to 2000

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Committee Member

Petersen, R. G.8
McCuistion, W. L.7
Thomas, David7
Hayes, Patrick6
McCuistion, Willis L.5
more Committee Members »

Creator

Brajcich, P.2
Camacho Casas, Miguel Alfonso2
Choi, Byung Han2
Costa, Jose Maria2
Encinas Mungarro, Andres2
more Creators »

Date

Date range begin – Date range end

Current results range from 1972 to 1999

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Decade

1990-199914
1980-198937
1970-19796

Degree Field

Crop Science[remove]57

Degree Level

Doctoral29
Master's28

Degree Name

Doctor of Philosophy (Ph.D.)29
Master of Science (M.S.)28

Language

English [eng]57

Non-Academic Affiliation

Oregon State University. Graduate School57

Peer Reviewed

No57

Resource Type

Dissertation29
Masters Thesis28

Rights Statement

Copyright Not Evaluated56
In Copyright1

Subject

Wheat -- Genetics10
Wheat8
Wheat -- Breeding8
Barley4
Winter wheat -- Yields4
more Subjects »

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